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Authors
Valenti, Emanuele https://orcid.org/0000-0001-7221-9608
Giacco, Domenico
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Article History
Received: 2 November 2021
Accepted: 11 September 2022
First Online: 21 October 2022
Declarations
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: The study received the approvals of 5 national RECs: Spain (REC reference number: HUFA-CEIC 12/66) for the entire study, the UK (REC reference number: QMREC2012/80), Canada (REC reference number: REB#13–011-B), Chile (REC reference number: 63/14–11-2013), Sweden (REC reference number: DNR 2013/011) for the national data. The remaining countries do not require approval. All participants provided written informed consent.
: Not applicable.
: The authors declare that they have no competing interests.
